Ring-frame for spinning and twisting textile materials.



E. PLANTROU.

RING FRAME FOB. SPINNING AND TWISTING TEXTILE MATERIALS.

, APPLICATION FILED JUNE 3, 1911. 1,126,075. Patented Jan. 26, 1915.

2 SHEETSSHEET l.

Witnesses THE NORRIS PETERS CO.. PHOTD-LITHO.. WASHINGTON. D C

E. PLAIITROH- RING FRAME FOB. SPIHHIEG AND TWISTING TEXTILE MATERIALS APPLICATION FILED JUNE 3, 1911. Lmwm Patented Jan. 26, 1915.

2 SHEETS-SHEET 2.

THE NORRIS PETERS 60., PHOTOJJTHDY. WASHING rON, D. c.

EUGENE PLANTROU, OF GIS$EL, FRANCE.

RING-FRAME FOR. SPINNING AND TVJISTING TEXTILE MATERIALS.

Specification of Letters Patent.

Patented Jan. 28, 1915.

App1ication filed June 3, 1911. Serial No. 631,125.

To all whom it may concern Be it known that I, EUGENE PLANTROU, citizen of the French Republic, residing at Oissel, in the Department of Seine-Infrieure and Republic of France, have inlvented certain new and useful Improve ments in Ring-Frames for Spinning and Twisting Textile Materials, of which the following is a specification.

In the operation of ring spinning frames it is necessary at the end of the formation of the bobbins or cops to effect an operation which has as its object the copping of the yarn from the top to the bottom of the bobbins or cops and is generally known as underwinding. This operation is for the purpose of bringing the frame into the desired. position for dofiing, that is to say, for removing the full bobbins or cops and substituting empty tubes. In order to effectthis underwinding the worker must employ her two hands so as simultaneously to occasion two different movements, one of which consists in slowly throwing the machine out of working while the other has to effect the copping of the yarn from the top to the bottom of the bobbin or cops. It frequently happens, however, in spite of the skill of certain experienced workers that this delicate operation of underwinding is defective and the result is that many yarns are broken, the work is inferior and there is considerable waste and loss of time. In order to obtain a good result it is absolutely necessary for these two movements to agree at certain points of their respective phase, which cannot be effected, more particularly cannot be repeated, with manual labor. Certain ring spinning frames have been provided with mechanisms merely stopping the machine at the end of the formation of the bobbins or cops. This improvement, which is already very old, has been but little applied because it renders the operation of underwinding referred to above very difficult, inasmuch as the worker is obliged to start the machine again in order to effect this underwinding. If the worker remains still and awaits the stoppage of the machine she will always be obliged to lower the copping rail by hand, and the inconveniences referred to above will recur.

The present invention is for the purpose of avoiding these inconveniences and consists in automatically efiecting by means of any suitable mechanical arrangements, working with or without the aid of electricity, or compressed fluids the operation of underwinding which up to the present has been effected by hand.

I shall now describe my invention with reference to the accompanying drawing showing a mechanical arrangement, enabling the underwinding to be effected automatically, in which:

Figure 1 is a side elevation of the device mounted on a ring spinning frame. Fig. 2 is a plan view showing the position of the principal parts of the arrangement, and Fig. 3 is a continuation of Fig. 1.

Referring to the drawing it will be seen that the chain 1 which transmits to the cop ping rail lifter rod 2 the movement of the apparatus (not shown) which regulates the formation of the bobbins or cops, passes over a roller 3 supported by an arm of a toothed-sector l pivoted at a fixed point 5. The toothed portion 6 of this sector 4r. meshes with a cog wheel 7, keyed to a small shaft 8, provided with a crank 9, a small drum 10 and a plate 11, in which a notch 12 is formed. A chain 13 is fastened to the drum 10, so that it can be wound on to the latter, and is connected at its other end to a buffer device of any suitable type, preferably to a rod 141- of a piston 15, which moves in the cylinder 16 of a dash-pot.

The hook 17 pivoted at the point 18 can engage in the notch 12 thus immobilizing the whole system, locking and fixing the sector 4 carrying the roller 3 which supports all the weight of the copping rail and lifter rods 2. A pawl 20 is arranged opposite the tail 19 of the hook 17 and is pivoted to a lever 21 tributary of the mechanism for throwing the spinning frame out of gear, which is effected at the termination of the building of the bobbins or cops. This move ment for throwing out of gear is effected by a rod 22 actuating lever 23 with a hook 2-1 supporting the lever 21, which under the action of a spring 25 operates a handle 27 by means of a chain 26. The handle 27 op crates the belt-guide 28 by means of a link 27 pivoted to said handle and guide.

A lever 29 pivoted on a sector 30 to which the chain 1 is connected carries a lug 31.

A pawl 32 is pivoted to a lever 33 which is fulcrumed on a standard 3% secured to the frame of the machine.

The working of the device is as follows:

During the lifting of the copping rail, the sector 30 moves to the right which effects a longitudinal movement to the right of the lever 29 and its lug 31, and engages the latter with the pawl 32. When the copping rail is at its highest point and commences to descend it turns to the left the sector 30 which carries with it the lever 29 and its lug 31, and the pawl 32 with which the latter is engaged. This produces an oscillation to the left of the lever 33, which effects a pull to the left on the rod 22. This rod 22 actuates the lever 23, and thus unhooks the hook 24: which supports the lever 21. Under the action of the spring 25, the lever 21 turns the. handle 27 by means of the chain 26. The handle 27 displaces the belt-guide 28 bringing it into the position shown in dotted lines on the loose pulley.

The automatic underwinding is eflected as follows: As soon as the lever 21 begins to descend the pawl 20 pressing on the tail 19 of the lever 17. causes the latter to rock, and .this disengages it from the notch 12, thereby releasing the shaft 8 and the sector 1. The copping rail resting with all its weight on the roller 3, which is no longer supported, actuates the sector 1, and by intermediation of the toothed-portion 6 and of the cog wheel 7 turns the shaft 8 in the direction of the arrow. This movement causes the chain 13 to wind on to the drum 10, and consequently displaces the piston 15 of the dashpot employed for this purpose.

It will be observed that by the continued movement to the left of the lever 29 and its lug 31, until the copping rail has reached the end of its path, the pawl 32 becomes disengaged from the lug and falls to the right thereof, to pass anew more slowly to the left of the lug when the latter is moved again to the right during the lifting of the copping rail. It will thus be seen that the weight and the descent of the copping rail are balanced by the resistance which the liquid offers to the upward movement of the piston 15. This movement consequently can only take place provided that the displacement of the liquid is possible, that is to say, provided. that the passage through or around the piston suiiices. The greater or less section of this passage and the variable viscosity of the liquid permits of regulating which should exist between this descent and the stoppage of the machine can easily be obtained, because this latter movement is also adjustable. It suflices more or less to adjust the tension of the spring 25, which actuates the lever 21, in order to push the belt more or less rapidly on to the loose pulley. These two movements will be regulated so that on the copping rail reaching its lowest point, the frame will not be completely stopped so that the yarn will be wound from the top to the bottom in long spirals and will be then wound for a few turns around the spindle and the machine stopped. In this position the finished bobbins or cops can be removed and empty tubes substituted. When this has been done in order to bring the frame into its position for starting, the worker will only have to turn the crank 9 so as to cause the hook 17 to engage in the notch 12. The throwing of the machine into gear will also return the lever 21 together with the pawl 20 into position.

As has already been stated the automaticity of the operation called underwinding in frames for spinning or twisting can be obtained by arrangements other than that shown and herein described for the sake of example. Furthermore the compensated balancing of the descent of the copping rail can be effected by any other buffer systems such as ratchet rods, springs, buffers, dashpots and the like.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

1. The combination with a ring spinning frame, of means for slowly stopping the machine, and means cooperating with said stopping means for slowly lowering the copping rail during such stopping operation.

2. The combination with a ring spinning frame, of means for slowly stopping the machine, means cooperating with said stopping means for slowly lowering the copping rail during such stopping operation, and means for automatically setting the latter means in operation when the stopping means is operated.

3. In a ring spinning frame, the combination with stopping mechanism and a copping rail, of flexible means for lifting and lowering said rail, and means released by the stopping mechanism for slacking said flexible means when the stopping mechanism is operated.

4. In a ring spinning frame, the combination with stopping mechanism and a copping rail, of a chain for lifting and lowering said rail, a pulley over which said chain runs, and means released by the stopping mechanism for lowering said pulley when the stopping mechanism is operated.

5. In a ring spinning frame, the combination with stopping mechanism and a copping rail, of a chain for lifting and lowering said rail, a pulley over which said chain runs, means for lowering said pulley when the stopping mechanism is operated, and means for retarding the lowering means.

6. In a ring spinning frame, the combination with stopping mechanism and a copping rail, of a chain for lifting and lowering said rail, a pulley over which said chain runs, a sector gear on which said pulley is mounted, means for releasing said sector when the stopping mechanism is operated, and means for retarding the movement of said sector.

7. In a ring spinning frame, the combination with stopping mechanism and a copping rail, of a chain for lifting and lowering said rail, a pulley over which said chain runs, a sector gear on which said pulley is mounted, means for releasing said sector when the stopping mechanism is operated, and a dash pot for retarding the movement of said sector.

8. In a ring spinning frame, the combination with stopping mechanism and a copping rail, of a chain for lifting and lowering said rail, a pulley over which said chain runs, a sector gear on which said pulley is mounted, a plate having a notch and mounted to rotate with said pulley, a detent engaging with said notch, means for releasing a said detent when the stopping mechanism is operated, and means for retarding the movement of said sector.

9. In a ring spinning frame, the combination with stopping mechanism and a copping rail, of a chain for lifting and lowering said rail, a pulley over which said chain runs, a sector gear on which said pulley is mounted, a notched plate rotating with said pulley, a detent lever engaging with said plate, a lever connected with the stopping mechanism and carrying a pawl engaging with said detent lever, and means for retarding the movement of said sector gear when said plate is released by said levers.

In testimony whereof I aliix my signature in presence of two witnesses.

EUGENE PLANTROU.

Witnesses C. BIERMAR, E. DELCUNIER.

Copies 0! this patent may be obtained for five cents each, by addressing the Commissioner of Eatents, Washington, D. O. 

